The DOI matches its Crossref record.
Experimental Investigations in Low-Noise Trailing Edge Design.
Abstract
Within a parametric study on brush-type trailing-edge extensions, the noise reduction potential of several design concepts was determined. The obtained database represents the first phase of an ongoing project with the longterm objective to develop scaling laws for a future application of such devices as add-on solutions for today's aircraft components. The experiments comprised both acoustic and aerodynamic measurements on a zero-lift generic plate model (Re = 2.1 x 10_6 to 7.9 x 10_6) in DLR's open jet Aeroacoustic Wind Tunnel Braunschweig. Noise data were taken by means of a directional microphone system. Measurement results indicate a significant source reduction potential in excess of 10dB, depending on the configuration. Two relevant noise reduction mechanisms were identified: 1) the suppression of narrowband bluntness noise, as well as 2) the reduction of broadband turbulent boundary-layer trailing-edge noise.
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Cited by
Reduction of Wind Turbine Noise Using Optimized Airfoils and Trailing-Edge Serrations
Oerlemans, S., Fisher, M., Maeder, T., & Kögler, K. (2009) · AIAA Journal · doi:10.2514/1.38888 · Cited by 447
Airframe Design for Silent Fuel-Efficient Aircraft
Hileman, J. I., Spakovszky, Z. S., Drela, M., Sargeant, M. A., & Jones, A. (2010) · Journal of Aircraft · doi:10.2514/1.46545 · Cited by 113
Metadata
- Authors
- Herr, M., & Dobrzynski, W.
- Venue
- AIAA Journal
- Published
- 2005-06
- Volume
- 43
- Issue
- 6
- Pages
- 1167-1175
- ISSN
- 0001-1452 (ISSN-L)
- 1533-385X
- OpenAlex
- W2029454068
- Cited by
- 223
- References
- 0
- FWCI
- 13.07
- Type
- journal article
- Language
- en
- Open access
- closed
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